QF know many biz seats are only booked the week before travel. It can he hard at times to get a paid biz seat SYD-LAX & LAX-SYD, especially weekends. QF is one of the most profitable airlines because it does not give our endless upgrades or reward flights.

Also SYD in not the only airport in Aussie. Try LAX-MEL or LAX-BNE or SFO-SYD/MEL/BNE